THE COMING WAVE;

OR, THE

HIDDEN TREASURE OF HIGH ROCK

BY

OLIVER OPTIC,

AUTHOR OF "YOUNG AMERICA ABROAD," "THE ARMY AND NAVY SERIES," "THE WOODVILLE STORIES," "THE STARRY FLAG SERIES," "THE BOAT CLUB STORIES," "THE LAKE SHORE SERIES," "THE UPWARD AND ONWARD SERIES," ETC., ETC.